Yet another outrigger accident
September 27, 2008 | Comments (0)
The crane, which had only been deliverd nine days earlier is owned by local rental company Gillespies, and was installing prefabricated walls when one of the outriggers punched through the slab floor causing the crane to tip, until the boom came to rest on the wall of the building. The operator managed to jump from the cab falling around three metres to the floor.
The crane remained in an unstable condition and within the hour it had fallen through the first floor to the ground level, with the boom resting on the remainder of the first floor wall and hanging over an adjacent industrial premises.
The crane driver suffered minor bruising to his ankle, but no one else was injured.
Engineers are continuing to monitor the site and WorkCover inspectors have commenced an investigation.
Gillespies is a first class reputable company that takes safety extremely importantly. Established since the early 1950's it prides itself on providing a quality service.
Given this, it is hard to understand how this accident happened, it looks as though the new floor simply did not perform as intended, however, one cannot but help wonder if this woud have occured if larger outrigger mats had been used to spread the load reducing point loadings?
It does go to show that even when you have the engineers information on alowable loadings it is wise to assume they are off and build in a larger margin of safety.